Is Elefunk worth the 5 dollars or am I better off getting a beer.

Also, does it support custom soundtracks?

I'd say it's worth it.  I wrote the page above ( Not the pictures tho ) and that's just for starters.  I plan on coming back for a full rewrite.

The multiplayer itself is more entertaining that the single player that can be blown thru in about 4 hours.

It totally is worth the 5 bucks.  The game is pretty fun, i hope the DLC they said they are releasing is cheap/free and contains more multiplayer maps.  Is there any way to create your own multiplayer levels?

I don't know if it's worth it. Length wise, u certainly get your 5 dollars worth but i found this game to be quite difficult. I got to the third or fourth stage and i hit a wall. It took the better part of a half hour to figure out what had to be done. While i enjoy that it lets me keep what i built so that i can just edit, i would've preferred a few more hints. I even had my sister with her architecture degree come over and give it a shot but she didn't do much better. If you can breeze through the demo than maybe this is the game for you, I'd buy the beer.

Not even, I didn't enjoy it at all.

Played the demo. Thought it was really fun. My type of game...

I'd say to use that five bucks on PAIN which is on sale right now. I really loved the old Pontifex/BridgeIT games and was hoping Elefunk would be similar but it just doesn't feel as fun. PAIN on the other hand turned out to be a total blast and well worth the five bucks (but definitely not the full price of $10). Yes, both are very different but both revolve around physics and for my money, personally, I found PAIN much more entertaining.

Bought the game. If you found the demo fun i would think 5 dollars is worth it. I had to pay 5 pounds which sucks. They shouldnt be charging like that with a bad exchange. Hope all games arent like that.